Battleground Berlin is the definitive, insider`s account of the espionage warfare in Berlin from 1945 to the construction of the Berlin Wall in 1961, In an unprecedented collaboration, CIA and KGB intelligence veterans reveal previously untold stories of the Berlin tunnel, critical movements of the Berlin crisis, clandestine initiatives, betrayals, and defections to provide the first comprehensive and accurate history of the Cold War battles waged in Berlin. Это и многое другое вы найдете в книге Battleground Berlin: CIA vs. KGB in the Cold War (David E. Murphy, Sergei A. Kondrashev, George Bailey)